题干
— How _______ is your aunt?
— She is _______.
A：much; thirty
B：much; thirtieth
C：old; thirty
D：old; thirtieth
答案(点此获取答案解析）
C
— How _______ is your aunt?
— She is _______.
A：much; thirty
B：much; thirtieth
C：old; thirty
D：old; thirtieth
，使
；命题
，都有
．有下列结论中正确的是 （ ）